Study finds Michigan costliest state for car insurance

(July 30, 2012) SAN FRANCISCO — Michigan residents face the steepest car insurance cost burden in the nation, according to new research released today by, a Bankrate company. The typical Michigan household pays a whopping eight percent of its annual income for car insurance. divided the median cost for car insurance by the median household income in each state (plus the District of Columbia) and found that Michigan, Louisiana, Kentucky, West Virginia and Mississippi are the five most expensive states for car insurance by this measure.

The least expensive state is Massachusetts, where the typical household pays 1.43 percent of its annual income for car insurance. North Carolina, Hawaii, Alaska and Oregon round out the five most affordable states.

Click here for a comprehensive breakdown of the car insurance costs in all 50 states, plus the District of Columbia.

"The laws in each state vary widely," explained John Egan of "For example, part of the reason why Michigan is so expensive is that it's the only state that guarantees unlimited personal injury protection. While you're probably not going to move to a new state just because of car insurance costs, the most important thing to remember is that – regardless of where you live — you can get a better deal than the Average Joe by shopping around."

Consumers can enter their zip code and compare quotes by clicking here. gathered median car insurance data and median household income data from all 50 states and Washington, D.C.